/**
 * 多行注释
 */
//单行注释
@color:red;
.flex(@space:space-between,@items:center){
	display: flex;
	justify-content: @space;
	align-items: @items;
}
.setcolor(a){
	color: #fff;
	background-color: #0ff;
	border: 1px solid #00f;
}
.setcolor(b){
	color: #000;
	background-color: #ff0;
	border: 1px solid #0f0;
}
.box{
	.setcolor(a);
	// &:extend(.box1);
	.box1;
	ul{
		border-radius: 50%;
		background-color: @color;
		.flex(space-around,flex-start);
		&:hover{
			background-color: #0f0;
		}
	}
}
.box1{
	.setcolor(b);
	width: 300px;
	height: "100px + 200px";
}

